Add it to your client

{
  "mcpServers": {
    "lyt": { "command": "lyt", "args": ["mcp", "start"] }
  }
}

The server uses stdio only. Run it through the unified Lyt CLI as shown; --port is reserved and rejected. The agent reads and writes plain markdown; YON gives Lyt system files structure it can parse directly. Search runs against the Lyt state available to this local process; remote-backed access and sharing operations can contact GitHub.

Every tool below is typed for an agent and maps to Lyt’s supported operations. The four cross-actor mutations — sharing, unsharing, accepting an invitation, and abandoning a vault — remain discoverable but fail closed over MCP; execute them through the CLI with the Handler’s explicit confirmation. Other writes have their own operation-specific effects and safeguards.